Head master's manual;
a manual for the head masters of New Hampshire secondary schools.

APA Citation

New Hampshire State Board of Education. Division of secondary schools. (1921). Head master's manual: a manual for the head masters of New Hampshire secondary schools. Concord: [Evans printing company].

MLA Citation

New Hampshire State Board of Education. Division of secondary schools. Head Master's Manual: a Manual for the Head Masters of New Hampshire Secondary Schools. Concord: [Evans printing company], 1921.

Warning: These citations may not always be complete (especially for serials).